package com.heima.media.service.impl;

import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.heima.common.dto.PageResponseResult;
import com.heima.common.dto.ResponseResult;
import com.heima.common.dto.User;
import com.heima.common.enums.AppHttpCodeEnum;
import com.heima.common.minio.MinIOService;
import com.heima.common.util.MediaThreadLocalUtil;
import com.heima.media.dto.WmMaterialDto;
import com.heima.media.entity.WmMaterial;
import com.heima.media.mapper.WmMaterialMapper;
import com.heima.media.service.IWmMaterialService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;

import java.util.Date;
import java.util.List;

/**
 * <p>
 * 自媒体图文素材信息表 服务实现类
 * </p>
 *
 * @author mcm
 * @since 2022-11-11
 */
@Service
public class WmMaterialServiceImpl extends ServiceImpl<WmMaterialMapper, WmMaterial> implements IWmMaterialService {

    @Autowired
    private MinIOService minIOService;
    /**
     * 上传图片
     *
     * @param file
     * @return
     */
    @Override
    public ResponseResult<WmMaterial> upload(MultipartFile file) {
        //获取用户id
        User user = MediaThreadLocalUtil.get();
        //判断用户是否存在
        if(StringUtils.isEmpty(user)){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        //调用minio获取图片地址
        String url = minIOService.upload(file);

        //构建用户数据,并保存数据
        WmMaterial wmMaterial = new WmMaterial();
        wmMaterial.setUserId(user.getUserId());
        wmMaterial.setUrl(url);
        wmMaterial.setType(0);
        wmMaterial.setIsCollection(false);
        wmMaterial.setCreatedTime(new Date());
        this.save(wmMaterial);
        return ResponseResult.okResult(wmMaterial);
    }

    /**
     * 图片管理
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult listByCollection(WmMaterialDto dto) {
        // 从本地线程获取用户信息
        User user = MediaThreadLocalUtil.get();
        //为空则提示需要登陆
        if(StringUtils.isEmpty(user)){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        //构建查询条件
        IPage<WmMaterial> page=new Page<>(dto.getPage(),dto.getSize());
        LambdaQueryWrapper<WmMaterial> query=new LambdaQueryWrapper<>();
        if(dto.getIsCollection()!=null) {
            query.eq(WmMaterial::getIsCollection, dto.getIsCollection());
        }
        //根据上传时间排序
        query.orderByDesc(WmMaterial::getCreatedTime);
        // 用户只能查看自己上传的图片
        query.eq(WmMaterial::getUserId,user.getUserId());
        IPage<WmMaterial> iPage = this.page(page, query);
        PageResponseResult result = new PageResponseResult(dto.getPage(), dto.getSize(), iPage.getTotal(), iPage.getRecords());
        return result;
    }
}
